adaptations of sea grass

Sea grass has had to adapt due to the fact that it was once a terrestrial plant, meaning that it grew on land. Unlike on land, the plant would need to have a high salinity tolerance to survive, and be rooted in the soil, able to withstand strong tidal currents. The decaying leaves of the grass provide food and nutrients to numerous bacteria. Sea grass also is shelter to many small marine animals, providing a feeding ground for larger animals. 
A resident is a marine animal that lives permanently in sea grass.

A migrant is an animal that migrate back and forth from the sea grass to a coral reef.

A traveler is an animal that tends to travel long distances and only rarely goes to see grass.

pictures

1.https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrU5-8S9LEmQvKdhihwCy26WK5PKA5aBwHCF04FIugGdb5D6UZ7v9g0JEf0IlliFXodVCCHl01mFDDhh4ed3VwfXHaELeGqMjdHfappNeKBFi6SiYq80Hs_GrLMBbgl4dGRT20D8S-fX8/s1600/Sea+urchin.jpg

2. http://change.nature.org/wp-content/uploads/sea-grass-puffer-fish.jpg

3. http://www.digitaltrends.com/wp-content/uploads/2011/05/Dolphins-talk-language.jpg